<!DOCTYPE html>
<html>

<head>
<meta charset="UTF-8">
<title></title>
<link rel="stylesheet" type="text/css" href="easyui-1.3.5/themes/default/easyui.css" />
<link rel="stylesheet" type="text/css" href="easyui-1.3.5/themes/icon.css" />
<script src="easyui-1.3.5/jquery.min.js" type="text/javascript" charset="utf-8"></script>
<script src="easyui-1.3.5/jquery.easyui.min.js" type="text/javascript" charset="utf-8"></script>
</head>

<body>
<ul id="tt" class="easyui-tree">
	<li>
		<span>Folder</span>
		<ul>
			<li>
				<span>Sub Folder 1</span>
				<ul>
					<li><span><a href="#">File 11</a></span></li>
					<li><span>File 12</span></li>
					<li><span>File 13</span></li>
				</ul>
			</li>
			<li><span>File 2</span></li>
			<li><span>File 3</span></li>
		</ul>
	</li>
	<li><span>File21</span></li>
</ul>
</body>
</html>